How long do prescription medications last for? In Hours please?

I was prescribed a prescription medication from my doc for knee pain and I'd like to know how many hours 1 pill lasts for before I can take my second one. It tells me to take 1 pill twice daily.

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  • 5 years ago

    If the information on the prescription bottle tells you to take 1 pill 2 times a day, that means you take 1 pill every 12 hours. Take 1 pill then 12 hours later take another pill.

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